Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지

Tribological Wear Behavior of PTFE Impregnated with Cu Nano Particles

구리 나노 입자가 함침된 PTFE의 윤활 마모 거동

  • 김시영 (부경대학교 기계시스템공학과) ;
  • 김은봉 (부경대학교 대학원) ;
  • 콴유 (부경대학교 대학원) ;
  • 주창식 (부경대학교 화학공학과)
  • Received : 2010.03.16
  • Accepted : 2010.07.19
  • Published : 2010.08.31
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Abstract

In order to investigate tribological effects of nano copper particles impregnated(CuN) on surface polytetrafluoroethylene(PTFE) on sealing wear and an experimental study was carried out to determine the wear behavior of copper nano-particles impregnation two kind thickness in super critical $CO_2$ liquid. Experimental results showed that the friction coefficients of CuN PTFE at the low sliding speed(0.44m/s) and the oil temperature ($60^{\circ}C$) were higher than that of virgin PTFE. And a thin nano copper particles impreganated thickness was formed on the surface in the PTFE and the specimen with this treatment has much better friction properties than the original one. Fortunately, at the high load(80 N) and the oil temperature, the friction coefficient of CuN PTFE was lower than that of virgin PTFE. This evidenced the load carrying capacity of CuN PTFE was much better than that of virgin PTFE under the high load condition(80 N) specially. Therefore, it can be concluded that the friction coefficient variation of CuN PTFE is very small but its wear rate decreases greatly with increase in sliding speed.

Keywords

References

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